Halogenated 1,3-Dioxolanes
US Patent: 5235074
Date: Aug. 10 1993
Inventors: W. Navarrini, S. Fontana, V. Montanari
published August 10, 1993
posted in Patents - 1993
published July 20, 1993
posted in Patents - 1993
Method for Preparing Perfluoro-Oxaziridines
US Patent: 5229525
Date: Jul. 20 1993
V. A. Petrov, D. D. Desmarteau, W. Navarrini
published July 13, 1993
posted in Patents - 1993
Process for Producing Salts of Fluorinated Alcohols
US Patent: 5227539
Date: Jul. 13 1993
Inventors: S. Kotun, D. Desmarteau, W. Navarrini
published July 6, 1993
posted in Patents - 1993
Process for Preparing Halogenated 1,3-Dioxolanes
US Patent: 5225576
Date: Jul. 6 1993
Inventors: W. Navarrini, S. Fontana, V. Montanari
published May 11, 1993
posted in Patents - 1993
Perfluorinated cyclic hemiketals, corresponding perfluorodiketones and process for preparing them
US Patent: 5210238
Date: May. 11 1993
Inventors: Anderson John D. , Desmarteau Darryl D. , Navarrini Walter.
published March 23, 1993
posted in Patents - 1993
Polyperfluoroaminoethers
US Patent: 5196595
Date: March. 23 1993
Inventors: W. Navarrini, D. D. Desmarteau.
published January 5, 1993
posted in Patents - 1993
Process for Preparing Perhalogenated Olefins
US Patent: 5177272
Date: Jan. 5 1993
Inventors: V. Montanari, D. D. Desmarteau, W. Navarrini
published April 7, 1992
posted in Patents - 1992
Process for Preparing Perfluoroalkenyl-Sulfonyl Fluorides
US Patent: 50103051 A
Date: Apr. 7 1992
Inventors: W. Navarrini, S. Modena
ABSTRACT
A continuous process for preparing perfluoroalkenyl sulfonyl fluorides (I)
Rf-CF=CF-SO2F (I)
wherein Rf is selected from the group consisting of F and a perfluoroalkyl group of from 1 to 9 carbon atoms is disclosed, in which a perfluoroalkyl (sulfonyl fluoride) monofluoroacetyl fluoride of formula
Rf-CF2-CF(COF)SO2F (II)
is used as the starting product. The starting product is contacted with a reactant selected from the group consisting of the oxides of an element of the Groups IA, IIA, IIB, IIIA and IVA of the Periodic Table of Elements, at a temperature comprised within the range of 150 to 450 C, and the compound (I) is recovered from the reaction effluent.
published April 7, 1992
posted in Patents - 1992
Process for Preparing Perfluoroalkenyl-Sulfonyl Fluorides
US Patent: 50103050 A
Date: Apr. 7 1992
Inventors: W. Navarrini, S. Modena
ABSTRACT
A continuous process for preparing perfluoroalkenyl sulfonyl fluorides (I)
Rf-CF=CF-SO2F (I)
wherein: Rf is selected from the group consisting of F and a perfluoroalkyl radical of from 1 to 9 carbon atoms is disclosed, in which as the starting compound a sultone (II) 
(II)
is used. The starting compound is placed into contact with a reactant selected from the group consisting of oxides and carbonates of an element of the Goups IA, IIA and IIB, and of the oxides of an element of the Groups IIIA and IVA of the Periodic Table of the Elements, and their mixtures, at a temperature comprised within the range of from 150 to 450 C, and the compound (I) is recovered from the reaction effluent.
published April 7, 1992
posted in Patents - 1992
Process for Preparing Perfluoroalkenyl-Sulfonyl Fluorides
US Patent: 5103049 A
Date: Apr. 7 1992
Inventors: W. Navarrini, D. D. Desmarteu
ABSTRACT
Process for the synthesis of perfluoroalkenyl-sulfonyl fluorides of formula:
Rf-CF=CF-SO2F
wherein:
Rf is F or a perfluoroalkyl group of from 1 to 9 carbon atoms, consisting in bringing a perfluoroalkyl-(sulfonyl fluoride) monofluoroacetyl-fluoride of formula Rf-CF2-CF(COF)-SO2F into contact with a reactant constituted by a carbonate of a metal belonging to Groups IA, IIA and IIB of the Periodical Table of the Elements at a temperature comprised within the range of from 150 to 400 C, and then recovering the desired product. The process is run in continuous.
published April 5, 1992
posted in Papers - 1992
PERFLUORO OXAZIRIDINES, OXAZETIDINES, AND DIAZIRIDINES IN RING-OPENING COPOLYMERIZATION
Author(s): NAVARRINI, W (NAVARRINI, W); DESMARTEAU, DD (DESMARTEAU, DD)
Source: ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY.
Volume: 207 Pages: 12-FLUO Part: 1 Published: MAR 13 1994.
published May 21, 1991
posted in Patents - 1991
Process for the Preparation of Perfluoro-Amino Oxaziridine
US Patent: 5017709
Date: May 21 1991
Inventors: W. Navarrini, D. D. Desmarteu
ABSTRACT
Perfluoro-oxaziridines, characterized by the presence of an aminic group in position 3 of the oxaziridine ring, of the formula:
wherein each R is independently either F or a perfluoro-alkyl group, and a process for their preparation, consisting in reacting the corresponding perfluoroimine with H2O2, in the presence of a base in a dipolar aprotic solvent.
published August 14, 1990
posted in Patents - 1990
Perfluorodiaziridines and Process for Preparing Them
US Patent: 4948903
Date: Aug. 14 1990
Inventors: W. Navarrini, D. D. Desmarteu
ABSTRACT
The present invention relates to novel perfluorodiaziridines having the formula: 
wherein: R1 and R2, the same or different from each other, represent a perfluoroalkyl group of from 1 to 10 carbon atoms, and R3 represents a fluorine atom or a perfluoroalkyl group of from 1 to 9 carbon atoms. These perfluorodiaziridines are obtained by reacting perfluoroaminooxaziridines with a source of fluoride ions.
published October 17, 1989
posted in Patents - 1989
Perfluoro-Amino-Oxaziridines
US Patent: 4874875 A
Date: Oct. 17 1989
Inventors: W. Navarrini, D. D. Desmarteu
ABSTRACT
Perfluoro-oxaziridines, characterized by the presence of an aminic group in position 3 of the oxaziridine ring, of the formula: 
wherein each R is independently either F or a perfluoro-alkyl group, and a process for their preparation, consisting in reacting the corresponding perfluoroimine with H2O2, in the presence of a base in a dipolar aprotic solvent.
